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Q.

Is it true that a fuse wire consists of an alloy of lead and tin because it has a very low melting point so, if a short circuit happens, the wire will melt and this will break the circuit ?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is [16]True.
A fuse wire consists of an alloy of lead and tin because it has a very low melting point so if a short circuit happens, the wire will melt and this will break the circuit.
We know that an electrical fuse is a circuit protection that safeguards electrical systems by destroying the connection whenever a short circuit occurs. Due to its strong resistance and low melting point, fuse wire is composed of Sn (tin) and Pb (lead) alloy. The tin and lead alloy is a eutectic composition of 62% tin and 38% lead that melts at 183o degrees Celsius.
 
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